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Question

Different words being formed by arranging the letters of the word "INTERMEDIATE". All the words obtained are written in the form of a dictionary,
lf vowels & consonants occupy their original places, then the number of permutations is

A
6!2!×6!2!
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B
6!3!×6!2!
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C
6!×6!3!2!2!
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D
None of these
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Solution

The correct option is C 6!×6!3!2!2!
We have:
I N T E R M E D I A T E
v c c v c c v c v v c v
The vowels may be arranged in their positions in 6!2!3! ways (since we have I 2 times and E 3 times)
The consonants many be arranged in their positions in 6!2! ways (since we have T 2 times)
Thus, total arrangements = 6!6!2!3!2!
Hence, (c) is correct.

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